A1200 replacement motherboard with the following specs:
68060 @ 333Mhz with a socket for optional PPC
Onboard RTG (256mb+3D) with scandoubler/flickerfixer
Built-in SATA ports
Built-in Catweasel type floppy controller (Use any 1.44mb PC floppy drive as Amiga 1.76mb)
Built-in USB (1 internal + 3 external)
Built-in Lan
Built-in Wifi
Accepts standard laptop DDR2 memory which can be configured as either chipram or fastram through a new Early Start-up menu
All this which can fit in a standard A1200 case with very little modification of course
